We are running out of flash space in AeroFC so a cleanup is necessary.

Tools not used in Aero RTF, INAV, fixed wing control, vtol control and
unused libs was removed.

before
$ size build_aerofc-v1_default/src/firmware/nuttx/firmware_nuttx
   text    data     bss     dec     hex filename
 956880    3524   14608  975012   ee0a4 firmware_nuttx

after
$ size build_aerofc-v1_default/src/firmware/nuttx/firmware_nuttx
   text    data     bss     dec     hex filename
 832200    3508   14616  850324   cf994 build_aerofc-v1_default/src/firmware/nuttx/firmware_nuttx